Patents by Inventor Min'an Lou

Min'an Lou has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Vector Migration of 1st Order Free-Surface Related Downgoing Multiples from VSP Data
    Publication number: 20080221796
    Abstract: 1st order free-surface multiples recorded in VSP data or reverse VSP data are processed using a 3-C 3-D vector migration method to produce an image of the subsurface. This image produces a larger coverage than that obtained in 3-C 3-D processing of reflection data acquired in the VSP.
    Type: Application
    Filed: March 9, 2007
    Publication date: September 11, 2008
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Min Lou, Xiaomin Zhao, Francis D. Doherty, James C. Jackson
  • Traveltime calculation in three dimensional transversely isotropic (3D TI) media by the fast marching method
    Patent number: 7315783
    Abstract: A technique for calculating traveltime of a seismic wave in three dimensional tilted transversely isotropic (3D TI) media includes determining a wave vector, defining a unit vector, calculating an angle of the wave vector from an axis and performing a slowness determination, wherein a unit vector for a symmetry axis is defined as: (cos ? sin ?, sin ? sin ?, cos ?); where ? represents the azimuth of the symmetry axis measured from the x direction; and, ? represents the dip angle of the symmetry axis measured from the z direction. The technique may be practiced as a computer implemented set of instructions, and may be incorporated into measurement equipment.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: January 1, 2008
    Assignee: Baker Hughes Incorporated
    Inventor: Min Lou
  • Sub-Salt Reflection Tomography and Imaging by Walkaway VSP Survey
    Publication number: 20070258324
    Abstract: A walkaway VSP survey is carried out with receivers located in a borehole near the base salt. Reflection tomographic inversion of data from the walkaway VSP is used to derive a velocity model for the subsurface and may be used for imaging of sub-salt reflections.
    Type: Application
    Filed: April 5, 2007
    Publication date: November 8, 2007
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Xiaomin Zhao, Min Lou, James Jackson
  • Sub-Salt Reflection Tomography and Imaging by Walkaway VSP Survey
    Publication number: 20070259432
    Abstract: A walkaway VSP survey is carried out with receivers located in a borehole near the base salt. Reflection tomographic inversion of data from the walkaway VSP is used to derive a velocity model for the subsurface and may be used for imaging of sub-salt reflections.
    Type: Application
    Filed: April 5, 2007
    Publication date: November 8, 2007
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Xiaomin Zhao, Min Lou, James Jackson
  • TRAVELTIME CALCULATION IN THREE DIMENSIONAL TRANSVERSELY ISOTROPIC (3D TTI) MEDIA BY THE FAST MARCHING METHOD
    Publication number: 20070168167
    Abstract: A technique for calculating traveltime of a seismic wave in three dimensional tilted transversely isotropic (3D TTI) media includes determining a wave vector, defining a unit vector, calculating an angle of the wave vector from an axis and performing a slowness determination. The technique may be practiced as a computer implemented set of instructions, and may be incorporated into measurement equipment.
    Type: Application
    Filed: September 29, 2006
    Publication date: July 19, 2007
    Applicant: BAKER HUGHES INCORPORATED
    Inventor: Min Lou
  • Traveltime calculation in three dimensional transversely isotropic (3D TTI) media by the fast marching method
    Publication number: 20070162249
    Abstract: A technique for calculating traveltime of a seismic wave in three dimensional tilted transversely isotropic (3D TTI) media includes determining a wave vector, defining a unit vector, calculating an angle of the wave vector from an axis and performing a slowness determination. The technique may be practiced as a computer implemented set of instructions, and may be incorporated into measurement equipment.
    Type: Application
    Filed: March 2, 2006
    Publication date: July 12, 2007
    Inventor: Min Lou